Theory of Machine Elements of pairs held together mechanically is known as Mechanical pair Rolling pair Open pair Closed pair Mechanical pair Rolling pair Open pair Closed pair ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine A shaft has an attached disc at the centre of its length. The disc has its centre of gravity located at a distance of 2 mm from the axis of the shaft. When the shaft is allowed to vibrate in its natural bow-shaped mode, it has a frequency of vibration of 10 rad/s. When the shaft is rotated at 300 r.p.m., it will whirl with a radius of 2 mm 2.50 mm 2.22 mm 3.0 mm 2 mm 2.50 mm 2.22 mm 3.0 mm ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The equation of motion for a vibrating system with viscous damping is (d²x/dt²) + (c/m).(dx/dt) + (s/m).x = 0, if the roots of the equation are __________ then the system will be under damped. Equal None of these Complex conjugate Real Equal None of these Complex conjugate Real ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The contact ratio is given by (Length of the arc of contact)/(Circular pitch) (Length of the arc of approach)/cosφ (Length of path of recess)/(Circular pitch) (Length of the path of approach)/(Circular pitch) (Length of the arc of contact)/(Circular pitch) (Length of the arc of approach)/cosφ (Length of path of recess)/(Circular pitch) (Length of the path of approach)/(Circular pitch) ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine In a mechanism, usually one link is fixed. If the fixed link is changed in a kinematic chain, then relative motion of other links Will remain same Will not occur Could change or remain unaltered depending on which link is fixed Will change Will remain same Will not occur Could change or remain unaltered depending on which link is fixed Will change ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The engine of an aeroplane rotates in clockwise direction when seen from the tail end and the aeroplane takes a turn to the left. The effect of gyroscopic couple on the aeroplane will be To raise the nose and dip the tail To dip the nose and tail To dip the nose and raise the tail To raise the nose and tail To raise the nose and dip the tail To dip the nose and tail To dip the nose and raise the tail To raise the nose and tail ANSWER DOWNLOAD EXAMIANS APP
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